Hi Dave, I too have a similar problem but not have worked directly on the problem. This is in medical devices where the instruments power is pulled off abruptly without shutting down. Also the wear and tear of the eMMC and detection of errors etc. The problems become much more serious and I cannot boot the instrument if the complete system is not working at 100%. Also the problem of run time monitoring to detect any problems in the system and alert the user or shutdown the system.
I have been thinking of evaluating datalight filesystem solutions for this problem. If your problem is mission critical I am interested in knowing your solutions. Thanks, Gautam. On Friday, December 8, 2017 at 7:31:03 AM UTC+5:30, Dave Barndt wrote: > > Hi Gautam, > > The filesystem is ext4; the O/S is debian 8/jessie, the image is the > "officially released" BBB image from last spring > (bone-debian-8.7-iot-armhf-2017-03-19-4gb.img.xz). To date we have not > modified any of the kernel startup scripts, save for setting a serial port > baud rate in /etc/rc.local. > > I wish I could tell you the power event that caused this to happen - it > was a unit in field test and folks there have been pretty much just killing > the power to it at various times. We had discussed putting the circuitry in > to allow a more graceful shutdown, but are only able to get to it now. That > said, power has been shutdown abruptly (power simply removed) literally > thousands of times on dozens of BBBs, but we've only seen a couple > corruptions. (Separately, we've also seen "bad block" corruptions > occasionally, presumably from wear (many, many writes over time).) > > Dave > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/e2f8c3a8-6201-4fed-a09d-69d1c8a31a8d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
